James Johnson wrote:

Because the suction generated by a propeller of a large commercial ships have
been known to suck small sail and power boats into them, let alone a kayak.

When there is no power to the prop there is no "suction" ...
You did write: "Ringing an 'All Stop" won't do any good
...."

You really have no conception of the forces and effects generated by a 25 foot
propeller turning 100 RPM.

Oh, I think I do.

Rick